Search results for: Muhammad Asif

Items from 1 to 20 out of 494 results

article

Superlattice stacking by hybridizing layered double hydroxide nanosheets with layers of reduced graphene oxide for electrochemical simultaneous determination of dopamine, uric acid and ascorbic acid

Muhammad Asif, Ayesha Aziz, Haitao Wang, Zhengyun Wang, more

Microchimica Acta > 2019 > 186 > 2 > 1-11

A self-assembled periodic superlattice material was obtained by integrating positively charged semiconductive sheets of a Zn-NiAl layered double hydroxide (LDH) and negatively charged layers of reduced graphene oxide (rGO). The material was used to modify a glassy carbon electrode which then is shown to be a viable sensor for the diagnostic parameters dopamine (DA), uric acid (UA) and ascorbic acid...

article

Evolution of ferroelectric and piezoelectric response by heat treatment in pseudocubic BiFeO₃–BaTiO₃ ceramics

Adnan Maqbool, Rizwan Ahmed Malik, Ali Hussain, Fazli Akram, more

Journal of Electroceramics > 2018 > 41 > 1-4 > 99-104

Heat treatment of ceramics is an important process to tailor the fine electromechanical properties. To explore the criteria for optimized heat treatment in a perovskite structure of (1–x)Bi_1.05FeO₃–xBaTiO₃ (BF–BT100x) system, the structural phase relation, ferroelectric and piezoelectric response of BF–BT36 and BF–BT40 ceramics prepared by furnace cooling (FC) and quenching process were investigated...

article

Si₃N₄/Al₂O₃ Stack Layer Passivation for InAlAs/InGaAs InP-Based HEMTs With Good DC and RF Performances

Peng Ding, Chen Chen, Muhammad Asif, Xi Wang, more

IEEE Journal of the Electron Devices Society > 2018 > 6 > 1 > 49 - 54

This paper introduces a novel surface passivation using Si₃N₄ (20-nm)/Al₂O₃ (15-nm) stack layers in InAlAs/InGaAs InP-based high-electron-mobility transistors (HEMTs). The new technology gives rise to good dc and RF performances in InP-based HEMTs. Notably different from the conventional Si₃N₄ approach, an ultrathin layer of Al₂O₃ (15-nm) grown by atomic layer deposition is incorporated in the surface...

article

Mapping sediment thickness of the Abbottabad basin, Pakistan

Zahid Hussain, Sarfraz Khan, Muhammad Asif Khan, Muhammad Waseem, more

Journal of Earth System Science > 2019 > 128 > 1 > 1-13

The Abbottabad basin is mainly composed of different loose and indurated sediments such as fine to medium grain silt and clay and large to medium sized boulders and cobbles, occupying a low land between the hills. These sediments are primarily stream deposits and variably compacted in the form of rock, suggested name Havelian group after their maximum thickness into Havelian area. Numerous streams...

article

Probabilistic seismic hazard assessment of Peshawar District, Pakistan

Ahmad Hammad Khaliq, Muhammad Waseem, Sarfraz Khan, Waqas Ahmed, more

Journal of Earth System Science > 2019 > 128 > 1 > 1-22

The seismic provisions for the Building Code of Pakistan were revised after the 2005 Kashmir earthquake and these have resulted in the introduction of a macrozonation ground motion hazard map in the seismic provisions. The macrozonation map proposes a peak ground acceleration (PGA) for the return period of 475 yr for Pakistan for flat rock sites. After the macrozonation, the next step is to develop...

article

Outbreak of Crimean-Congo haemorrhagic fever with atypical clinical presentation in the Karak District of Khyber Pakhtunkhwa, Pakistan

Khalid Rehman, Muhammad Asif Khan Bettani, Luzia Veletzky, Shaheen Afridi, more

Infectious Diseases of Poverty > 2018 > 7 > 1 > 1-6

Background Crimean-Congo haemorrhagic fever (CCHF) is a potentially fatal disease endemic in Pakistan. The causative virus is transmitted by the bite of Hyalomma ticks or by contact with infected blood or tissue. First cases of the disease were reported in Pakistan in 1976 but regular outbreaks have been observed since the year 2000. A huge agricultural base with more than 175 million livestock, the...

article

Coffee Ring–Inspired Approach toward Oriented Self‐Assembly of Biomimetic Murray MOFs as Sweat Biosensor

Zhengyun Wang, Ting Liu, Yang Yu, Muhammad Asif, more

Small > 14 > 45 > n/a - n/a

The emergence of metal–organic frameworks (MOFs) has sparked intensive attention and opened up the possibility of “crystal engineering.” However, low conductivity, slow diffusion of guest molecules, as well as powder forms always hinder the development of MOF application, especially for biosensors and bioelectronics. Herein, a coffee ring–inspired strategy toward oriented self‐assembly of a biomimetic...

article

Yucca schidigera can mitigate ammonia emissions from manure and promote poultry health and production

Muhammad Saeed, Muhammad Asif Arain, Muhammad Naveed, Mahmoud Alagawany, more

Environmental Science and Pollution Research > 2018 > 25 > 35 > 35027- 35033

Mojave yucca (Yucca schidigera) is widely grown in the deserts. This herb is commercially used because it is rich in saponins and phenolic compounds with antioxidant effect. Y. schidigera or its derivatives are included as nontoxic food supplements, in cosmetics, and in the pharmaceutical industry. Saponins originated from Y. schidigera have anti-inflammatory, antioxidant, immunostimulatory, growth...

article

Structure, infra-red, dielectric properties and conduction mechanism of Ti and Cu–Ti co-doped bismuth ferrite (BiFeO₃): a comparison study

Muhammad Asif Rafiq, Qaisar Khushi Muhammad, Sameel Nasir, Usama Amin, more

Applied Physics A > 2018 > 124 > 11 > 1-8

Multiferroic compositions BiFe_0.90Ti_0.10O₃ and BiFe_0.885Cu_0.015Ti_0.1O₃ were synthesized by solid-state mixed oxide method. XRD studies confirmed rhombohedral crystal structure for both compositions while a little change in lattice parameters was observed with Cu–Ti co-doping. SEM analysis indicate that with co-doping comparatively smaller grains were evolved in the microstructure. Fourier-transform...

article

Countrywide Survey for MERS-Coronavirus Antibodies in Dromedaries and Humans in Pakistan

Ali Zohaib, Muhammad Saqib, Muhammad Ammar Athar, Jing Chen, more

Virologica Sinica > 2018 > 33 > 5 > 410-417

Middle East Respiratory Syndrome Coronavirus (MERS-CoV) is a zoonotic pathogen capable of causing severe respiratory disease in humans. Although dromedary camels are considered as a major reservoir host, the MERS-CoV infection dynamics in camels are not fully understood. Through surveillance in Pakistan, nasal (n = 776) and serum (n = 1050) samples were collected from camels between November 2015...

article

Potential drug-drug interactions in outpatient department of a tertiary care hospital in Pakistan: a cross-sectional study

Mohammad Ismail, Sidra Noor, Umme Harram, Inamul Haq, more

BMC Health Services Research > 2018 > 18 > 1 > 1-7

Background Potential drug–drug interactions (pDDIs) are one of the preventable drug related problems having the risk of serious adverse events or therapeutic failure. In developing countries like Pakistan, this issue remains poorly addressed. The objective of this study was to explore prevalence of pDDIs in the Outpatient Department (OPD) of a tertiary care hospital in Pakistan. The secondary aim...

article

A new stochastic computing paradigm for the dynamics of nonlinear singular heat conduction model of the human head

Muhammad Asif Zahoor Raja, Muhammad Umar, Zulqurnain Sabir, Junaid Ali Khan, more

The European Physical Journal Plus > 2018 > 133 > 9 > 1-21

. Bio-inspired computing approaches are effective to solve a variety of dynamical problems. The strength of these stochastic solvers is exploited for the numerical treatment of a nonlinear heat conduction model of the human head using artificial neural networks (ANNs), genetic algorithms (GAs), active-set technique (AST), and their hybrids. The universal function approximation competencies of unsupervised...

article

Effect of predicted climate change on growth and yield performance of wheat under varied nitrogen and zinc supply

Muhammad Asif, Cevza Esin Tunc, Mustafa Atilla Yazici, Yusuf Tutus, more

Plant and Soil > 2019 > 434 > 1-2 > 231-244

Background and aims Sustainable crop production is crucial to address global food security and requires a solid input of chemical fertilizers containing macro (e.g. nitrogen: N) and micro (e.g. zinc: Zn) nutrients. However, climatic factors beyond farmers’ management capabilities determine the final crop yields, and world’s climate has been changing more rapidly than ever due to human activities such...

article

Late Neoproterozoic–Early Palaeozoic stratigraphic succession, Western Himalaya, North Pakistan: Detrital zircon provenance and tectonic implications

Muhammad Qasim, Lin Ding, Muhammad Asif Khan, Muhammad Umar, more

Geological Journal > 53 > 5 > 2258 - 2279

This paper presents the first ever detrital zircon U–Pb–Hf isotopic study for the Late Neoproterozoic–Early Palaeozoic stratigraphic succession exposed in the Hazara Basin, Western Himalaya, North Pakistan. This time span represents the break‐up of the supercontinent Rodinia and final assembly of Gondwana. The detrital record of the Late Neoproterozoic succession indicates well‐mixed detritus shed...

article

Hierarchically Porous Fe₂CoSe₄ Binary‐Metal Selenide for Extraordinary Rate Performance and Durable Anode of Sodium‐Ion Batteries

Zeeshan Ali, Muhammad Asif, Xiaoxiao Huang, Tianyu Tang, more

Advanced Materials > 30 > 36 > n/a - n/a

Owing to high energy capacities, transition metal chalcogenides have drawn significant research attention as the promising electrode materials for sodium‐ion batteries (SIBs). However, limited cycle life and inferior rate capabilities still hinder their practical application. Improvement of the intrinsic conductivity by smart choice of elemental combination along with carbon coupling of the nanostructures...

article

Co/MnO/N-C hybrid derived from N-methyl-D-glucamine as efficient bifunctional oxygen electrocatalysts

Wei Wang, Haitao Wang, Zexing Wu, Yang Yu, more

Electrochimica Acta > 2018 > 281 > C > 486-493

The low oxygen reduction reaction (ORR) electrocatalytic activities of Mn-based bifunctional electrocatalysts restrict their further development in clean energy equipment. In this work, Co/MnO/N-C oxygen electrocatalyst was prepared through a simple solvothermal and subsequent annealing process by using N-Methyl-d-glucamine as nitrogen and carbon source simultaneously. Benefiting from the abundant...

article

Isolation, characterization and efficacy of phage MJ2 against biofilm forming multi-drug resistant Enterobacter cloacae

Muhsin Jamal, Saadia Andleeb, Fazal Jalil, Muhammad Imran, more

Folia Microbiologica > 2019 > 64 > 1 > 101-111

Biofilm is involved in a variety of infections, playing a critical role in the chronicity of infections. Enterobacter cloacae is a biofilm-forming and multi-drug-resistant (MDR) nosocomial pathogen leading to significant morbidity and mortality. This study aimed at isolation of a bacteriophage against MDR clinical strain of E. cloacae and its efficacy against bacterial planktonic cells and biofilm...

article

A generic methodology for geo‐related data semantic annotation

Kaleem Razzaq Malik, Muhammad Asif Habib, Shehzad Khalid, Mudassar Ahmad, more

Concurrency and Computation: Practice and Experience > 30 > 15 > n/a - n/a

Geo‐related data, also known as spatial data, is represented using a vector used for representing longitude, elevation, and latitude. Specially built systems, well known as Geographical Information Systems (GIS), made use of such data for querying, manipulating, navigation, and analyzing. In the current era of data, science needs to involve smart interactive investigation involving Internet of Data...

article

A new stochastic computing paradigm for nonlinear Painlevé II systems in applications of random matrix theory

Muhammad Asif Zahoor Raja, Zahoor Shah, Muhammad Anwaar Manzar, Iftikhar Ahmad, more

The European Physical Journal Plus > 2018 > 133 > 7 > 1-21

. The aim of the present work is to investigate the stochastic numerical solutions of nonlinear Painlevé II systems arising from studies of two-dimensional Yang-Mills theory, growth processes through fluctuation formulas in statistical physics, soft-edge random matrix distributions using the strength of bio-inspired heuristics through artificial neural networks (ANNs), genetic algorithm (GA)-based...

article

Performance evaluation of 1-D numerical model HEC-RAS towards modeling sediment depositions and sediment flushing operations for the reservoirs

Habib-ur-Rehman, Muhammad Asif Chaudhry, Usman Ali Naeem, Hashim Nisar Hashmi

Environmental Monitoring and Assessment > 2018 > 190 > 7 > 1-18

Sediment inflow to the reservoir is a key factor to calculate life of the reservoir. Flushing is a very useful technique in order to enhance the life of reservoir. From the literature review, 14 reservoirs were considered where flushing has already been practiced and only 6 reservoirs were found successful in flushing. The others were found partially flushed. In this research, data of three successfully...

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INFONA - science communication portal

Search results for: Muhammad Asif

Superlattice stacking by hybridizing layered double hydroxide nanosheets with layers of reduced graphene oxide for electrochemical simultaneous determination of dopamine, uric acid and ascorbic acid

Evolution of ferroelectric and piezoelectric response by heat treatment in pseudocubic BiFeO₃–BaTiO₃ ceramics

Si₃N₄/Al₂O₃ Stack Layer Passivation for InAlAs/InGaAs InP-Based HEMTs With Good DC and RF Performances

Mapping sediment thickness of the Abbottabad basin, Pakistan

Probabilistic seismic hazard assessment of Peshawar District, Pakistan

Outbreak of Crimean-Congo haemorrhagic fever with atypical clinical presentation in the Karak District of Khyber Pakhtunkhwa, Pakistan

Coffee Ring–Inspired Approach toward Oriented Self‐Assembly of Biomimetic Murray MOFs as Sweat Biosensor

Yucca schidigera can mitigate ammonia emissions from manure and promote poultry health and production

Structure, infra-red, dielectric properties and conduction mechanism of Ti and Cu–Ti co-doped bismuth ferrite (BiFeO₃): a comparison study

Countrywide Survey for MERS-Coronavirus Antibodies in Dromedaries and Humans in Pakistan

Potential drug-drug interactions in outpatient department of a tertiary care hospital in Pakistan: a cross-sectional study

A new stochastic computing paradigm for the dynamics of nonlinear singular heat conduction model of the human head

Effect of predicted climate change on growth and yield performance of wheat under varied nitrogen and zinc supply

Late Neoproterozoic–Early Palaeozoic stratigraphic succession, Western Himalaya, North Pakistan: Detrital zircon provenance and tectonic implications

Hierarchically Porous Fe₂CoSe₄ Binary‐Metal Selenide for Extraordinary Rate Performance and Durable Anode of Sodium‐Ion Batteries

Co/MnO/N-C hybrid derived from N-methyl-D-glucamine as efficient bifunctional oxygen electrocatalysts

Isolation, characterization and efficacy of phage MJ2 against biofilm forming multi-drug resistant Enterobacter cloacae

A generic methodology for geo‐related data semantic annotation

A new stochastic computing paradigm for nonlinear Painlevé II systems in applications of random matrix theory

Performance evaluation of 1-D numerical model HEC-RAS towards modeling sediment depositions and sediment flushing operations for the reservoirs

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